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SMD/SMT Interface - I/O Expanders

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (JPY) Filter the results in the table by unit price based on your quantity.	Qty.	Series	Mounting Style	Package / Case	Interface Type	Number of I/Os	Interrupt Output	Supply Voltage - Min	Supply Voltage - Max	Maximum Clock Frequency	Minimum Operating Temperature	Maximum Operating Temperature	Packaging	ESD Protection
Interface - I/O Expanders 8B I/O Expander SPI interface MCP23009T-E/MG Microchip Technology 1: ¥270.7 1,234In Stock 6,600Expected 1/25/2027	Mfr. Part # MCP23009T-E/MG Mouser Part # 579-MCP23009T-E/MG	Microchip Technology	Interface - I/O Expanders 8B I/O Expander SPI interface	Datasheet	1,234In Stock 6,600Expected 1/25/2027	Cut Tape ¥270.7 ¥225.9 ¥222.6 ¥220.9 ¥219.3 Reel ¥212.6 MouseReel Available	Min.: 1 Mult.: 1 : 3,300		SMD/SMT	QFN-16	I2C, Serial	8 I/O	With Interrupt	1.8 V	5.5 V	3.4 MHz	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel	4 kV
Interface - I/O Expanders 8-bit I/O Expander I2C interface MCP23009T-E/SS Microchip Technology 1: ¥270.7 1,872In Stock	Mfr. Part # MCP23009T-E/SS Mouser Part # 579-MCP23009T-E/SS	Microchip Technology	Interface - I/O Expanders 8-bit I/O Expander I2C interface	Datasheet	1,872In Stock	Cut Tape ¥270.7 ¥227.6 Reel ¥202.6 MouseReel Available	Min.: 1 Mult.: 1 : 1,600		SMD/SMT	SSOP-20	I2C, Serial	8 I/O	With Interrupt	1.8 V	5.5 V	3.4 MHz	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel	4 kV
Interface - I/O Expanders 16B I/O Expander I2C interface MCP23018-E/MJ Microchip Technology 1: ¥338.8 2,839In Stock	Mfr. Part # MCP23018-E/MJ Mouser Part # 579-MCP23018-E/MJ	Microchip Technology	Interface - I/O Expanders 16B I/O Expander I2C interface	Datasheet	2,839In Stock	¥338.8 ¥280.7 ¥255.8	Min.: 1 Mult.: 1		SMD/SMT	QFN-24	I2C, Serial	16 I/O	With Interrupt	1.8 V	5.5 V	3.4 MHz	- 40 C	+ 125 C	Tube	Without ESD Protection
Interface - I/O Expanders 16-bit I/O Expander I2C interface MCP23018-E/SS Microchip Technology 1: ¥372.1 2,929In Stock	Mfr. Part # MCP23018-E/SS Mouser Part # 579-MCP23018-E/SS	Microchip Technology	Interface - I/O Expanders 16-bit I/O Expander I2C interface	Datasheet	2,929In Stock	¥372.1 ¥308.9 ¥280.7 ¥279 View ¥275.7 ¥274.1	Min.: 1 Mult.: 1		SMD/SMT	SSOP-24	I2C, Serial	16 I/O	With Interrupt	1.8 V	5.5 V	3.4 MHz	- 40 C	+ 125 C	Tube	Without ESD Protection
Interface - I/O Expanders 16B I/O Expander I2C interface MCP23018T-E/MJ Microchip Technology 1: ¥338.8 1,437In Stock 9,900Expected 12/28/2026	Mfr. Part # MCP23018T-E/MJ Mouser Part # 579-MCP23018T-E/MJ	Microchip Technology	Interface - I/O Expanders 16B I/O Expander I2C interface	Datasheet	1,437In Stock 9,900Expected 12/28/2026	Cut Tape ¥338.8 ¥280.7 Reel ¥255.8 MouseReel Available	Min.: 1 Mult.: 1 : 3,300		SMD/SMT	QFN-24	I2C, Serial	16 I/O	With Interrupt	1.8 V	5.5 V	3.4 MHz	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel	Without ESD Protection
Interface - I/O Expanders 16-bit I/O Expander I2C interface MCP23018T-E/SS Microchip Technology 1: ¥372.1 4,564In Stock	Mfr. Part # MCP23018T-E/SS Mouser Part # 579-MCP23018T-E/SS	Microchip Technology	Interface - I/O Expanders 16-bit I/O Expander I2C interface	Datasheet	4,564In Stock	Cut Tape ¥372.1 ¥315.6 Reel ¥280.7 MouseReel Available	Min.: 1 Mult.: 1 : 2,100		SMD/SMT	SSOP-24	I2C, Serial	16 I/O	With Interrupt	1.8 V	5.5 V	3.4 MHz	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel	Without ESD Protection
Interface - I/O Expanders 8bit Input/Output Exp SPI interface MCP23S08-E/ML Microchip Technology 1: ¥274.1 5,544In Stock	Mfr. Part # MCP23S08-E/ML Mouser Part # 579-MCP23S08-E/ML	Microchip Technology	Interface - I/O Expanders 8bit Input/Output Exp SPI interface	Datasheet	5,544In Stock	¥274.1 ¥227.6 ¥220.9	Min.: 1 Mult.: 1		SMD/SMT	QFN-20	Serial, SPI	8 I/O	With Interrupt	1.8 V	5.5 V	10 MHz	- 40 C	+ 125 C	Tube	Without ESD Protection
Interface - I/O Expanders In/Out SPI int MCP23S08-E/SS Microchip Technology 1: ¥257.5 2,585In Stock 7,035Expected 11/16/2026	Mfr. Part # MCP23S08-E/SS Mouser Part # 579-MCP23S08-E/SS	Microchip Technology	Interface - I/O Expanders In/Out SPI int	Datasheet	2,585In Stock 7,035Expected 11/16/2026	¥257.5 ¥214.3 ¥192.7	Min.: 1 Mult.: 1		SMD/SMT	SSOP-20	Serial, SPI	8 I/O	With Interrupt	1.8 V	5.5 V	10 MHz	- 40 C	+ 125 C	Tube	Without ESD Protection
Interface - I/O Expanders 8bit Input/Output Exp SPI interface MCP23S08T-E/ML Microchip Technology 1: ¥274.1 2,549In Stock 3,300Expected 12/21/2026	Mfr. Part # MCP23S08T-E/ML Mouser Part # 579-MCP23S08T-E/ML	Microchip Technology	Interface - I/O Expanders 8bit Input/Output Exp SPI interface	Datasheet	2,549In Stock 3,300Expected 12/21/2026	Cut Tape ¥274.1 ¥270.7 Reel ¥225.9 MouseReel Available	Min.: 1 Mult.: 1 : 3,300		SMD/SMT	QFN-20	Serial, SPI	8 I/O	With Interrupt	1.8 V	5.5 V	10 MHz	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel	Without ESD Protection
Interface - I/O Expanders In/Out SPI int MCP23S08T-E/SO Microchip Technology 1: ¥255.8 7,600In Stock	Mfr. Part # MCP23S08T-E/SO Mouser Part # 579-MCP23S08T-E/SO	Microchip Technology	Interface - I/O Expanders In/Out SPI int	Datasheet	7,600In Stock	Cut Tape ¥255.8 ¥252.5 Reel ¥210.9 MouseReel Available	Min.: 1 Mult.: 1 : 1,100		SMD/SMT	SOIC-18	Serial, SPI	8 I/O	With Interrupt	1.8 V	5.5 V	10 MHz	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel	Without ESD Protection
Interface - I/O Expanders In/Out SPI int MCP23S08T-E/SS Microchip Technology 1: ¥257.5 8,184In Stock	Mfr. Part # MCP23S08T-E/SS Mouser Part # 579-MCP23S08T-E/SS	Microchip Technology	Interface - I/O Expanders In/Out SPI int	Datasheet	8,184In Stock	Cut Tape ¥257.5 ¥214.3 Reel ¥192.7 MouseReel Available	Min.: 1 Mult.: 1 : 1,600		SMD/SMT	SSOP-20	Serial, SPI	8 I/O	With Interrupt	1.8 V	5.5 V	10 MHz	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel	Without ESD Protection
Interface - I/O Expanders 8B I/O Expander SPI interface MCP23S09-E/MG Microchip Technology 1: ¥282.4 6,970In Stock 5,040Expected 12/14/2026	Mfr. Part # MCP23S09-E/MG Mouser Part # 579-MCP23S09-E/MG	Microchip Technology	Interface - I/O Expanders 8B I/O Expander SPI interface	Datasheet	6,970In Stock 5,040Expected 12/14/2026	¥282.4 ¥237.5 ¥214.3	Min.: 1 Mult.: 1		SMD/SMT	QFN-16	Serial, SPI	8 I/O	With Interrupt	1.8 V	5.5 V	10 MHz	- 40 C	+ 125 C	Tube	4 kV
Interface - I/O Expanders 8B I/O Expander SPI interface MCP23S09T-E/MG Microchip Technology 1: ¥282.4 2,626In Stock	Mfr. Part # MCP23S09T-E/MG Mouser Part # 579-MCP23S09T-E/MG	Microchip Technology	Interface - I/O Expanders 8B I/O Expander SPI interface	Datasheet	2,626In Stock	Cut Tape ¥282.4 ¥237.5 Reel ¥214.3 MouseReel Available	Min.: 1 Mult.: 1 : 3,300		SMD/SMT	QFN-16	Serial, SPI	8 I/O	With Interrupt	1.8 V	5.5 V	10 MHz	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel	4 kV
Interface - I/O Expanders 16bit Input/Output Exp SPI interface MCP23S17-E/ML Microchip Technology 1: ¥338.8 2,653In Stock 9,760Expected 12/3/2026	Mfr. Part # MCP23S17-E/ML Mouser Part # 579-MCP23S17-E/ML	Microchip Technology	Interface - I/O Expanders 16bit Input/Output Exp SPI interface Learn More about Microchip Technology microchip mcp23x17 io expanders	Datasheet	2,653In Stock 9,760Expected 12/3/2026	¥338.8 ¥280.7 ¥255.8	Min.: 1 Mult.: 1	MCP23S17	SMD/SMT	QFN-28	Serial, SPI	16 I/O	With Interrupt	1.8 V	5.5 V	10 MHz	- 40 C	+ 125 C	Tube	4 kV
Interface - I/O Expanders 16bit Input/Output Exp SPI interface MCP23S17T-E/SO Microchip Technology 1: ¥280.7 10,998In Stock 17,600Expected 1/1/2027	Mfr. Part # MCP23S17T-E/SO Mouser Part # 579-MCP23S17T-E/SO	Microchip Technology	Interface - I/O Expanders 16bit Input/Output Exp SPI interface Learn More about Microchip Technology microchip mcp23x17 io expanders	Datasheet	10,998In Stock 17,600Expected 1/1/2027	Cut Tape ¥280.7 ¥232.5 Reel ¥212.6 MouseReel Available	Min.: 1 Mult.: 1 : 1,600	MCP23S17	SMD/SMT	SOIC-28	Serial, SPI	16 I/O	With Interrupt	1.8 V	5.5 V	10 MHz	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel	4 kV
Interface - I/O Expanders 16B I/O Expander SPI interface MCP23S18-E/MJ Microchip Technology 1: ¥357.1 3,022In Stock 4,095Expected 3/19/2027	Mfr. Part # MCP23S18-E/MJ Mouser Part # 579-MCP23S18-E/MJ	Microchip Technology	Interface - I/O Expanders 16B I/O Expander SPI interface	Datasheet	3,022In Stock 4,095Expected 3/19/2027	¥357.1 ¥299 ¥270.7	Min.: 1 Mult.: 1		SMD/SMT	QFN-24	Serial, SPI	16 I/O	With Interrupt	1.8 V	5.5 V	10 MHz	- 40 C	+ 125 C	Tube	Without ESD Protection
Interface - I/O Expanders 16B I/O Expander SPI interface MCP23S18T-E/MJ Microchip Technology 1: ¥357.1 2,405In Stock 9,900Expected 1/1/2027	Mfr. Part # MCP23S18T-E/MJ Mouser Part # 579-MCP23S18T-E/MJ	Microchip Technology	Interface - I/O Expanders 16B I/O Expander SPI interface	Datasheet	2,405In Stock 9,900Expected 1/1/2027	Cut Tape ¥357.1 ¥299 Reel ¥270.7 MouseReel Available	Min.: 1 Mult.: 1 : 3,300	MCP23S18	SMD/SMT	QFN-24	Serial, SPI	16 I/O	With Interrupt	1.8 V	5.5 V	10 MHz	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel	Without ESD Protection
Interface - I/O Expanders 16B I/O Expander SPI interface MCP23S18T-E/SO Microchip Technology 1: ¥357.1 926In Stock	Mfr. Part # MCP23S18T-E/SO Mouser Part # 579-MCP23S18T-E/SO	Microchip Technology	Interface - I/O Expanders 16B I/O Expander SPI interface	Datasheet	926In Stock	Cut Tape ¥357.1 ¥299 Reel ¥270.7 MouseReel Available	Min.: 1 Mult.: 1 : 1,600		SMD/SMT	SOIC-28	Serial, SPI	16 I/O	With Interrupt	1.8 V	5.5 V	10 MHz	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel	Without ESD Protection
Interface - I/O Expanders Mixed signal Expandr MCP25050-I/SL Microchip Technology 1: ¥803.9 1,011In Stock	Mfr. Part # MCP25050-I/SL Mouser Part # 579-MCP25050-I/SL	Microchip Technology	Interface - I/O Expanders Mixed signal Expandr	Datasheet	1,011In Stock	¥803.9 ¥667.7 ¥664.4	Min.: 1 Mult.: 1		SMD/SMT	SOIC-14	CAN	8 I/O	Without Interrupt	5.5 V	5.5 V	25 MHz	- 65 C	+ 150 C	Tube	3.5 kV
Interface - I/O Expanders I/O PORT EXPANDR FOR NEUTRON 534 CY8C9520A-24PVXIT Infineon Technologies 1: ¥1,034.8 1,958In Stock	Mfr. Part # CY8C9520A-24PVXIT Mouser Part # 727-CY8C9520A24PVXIT	Infineon Technologies	Interface - I/O Expanders I/O PORT EXPANDR FOR NEUTRON 534 Learn More about Infineon Technologies cypress psoc	Datasheet	1,958In Stock	Cut Tape ¥1,034.8 ¥794 ¥734.2 ¥667.7 Reel ¥604.6 View ¥639.5 ¥611.2 ¥594.6 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000	CY8C95xx	SMD/SMT	SSOP-28	I2C, Serial, SMBus	20 I/O	With Interrupt	3 V	5.25 V	100 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders 11Kb 40 IO EXPANDER W/EEPROM CY8C9540A-24PVXIT Infineon Technologies 1: ¥1,958.3 1,428In Stock	Mfr. Part # CY8C9540A-24PVXIT Mouser Part # 727-CY8C9540A24PVXIT	Infineon Technologies	Interface - I/O Expanders 11Kb 40 IO EXPANDER W/EEPROM Learn More about Infineon Technologies cypress psoc	Datasheet	1,428In Stock	Cut Tape ¥1,958.3 ¥1,534.8 ¥1,428.5 ¥1,312.2 View Reel ¥1,200.9 ¥1,293.9 ¥1,217.5 ¥1,200.9 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	CY8C95xx	SMD/SMT	SSOP-48	I2C, Serial, SMBus	40 I/O	With Interrupt	3 V	5.25 V	100 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders 2-Wire-Interfaced, 2.5V to 5.5V, 20-Port MAX7300AAX+ Analog Devices / Maxim Integrated 1: ¥3,576.1 524In Stock	Mfr. Part # MAX7300AAX+ Mouser Part # 700-MAX7300AAX	Analog Devices / Maxim Integrated	Interface - I/O Expanders 2-Wire-Interfaced, 2.5V to 5.5V, 20-Port	Datasheet	524In Stock	¥3,576.1 ¥2,840.3 ¥2,719.1 ¥2,509.8 View ¥2,393.5 ¥2,350.3	Min.: 1 Mult.: 1	MAX7300	SMD/SMT	SSOP-36	I2C, Serial	20 I/O	With Interrupt	2.5 V	5.5 V	400 kHz	- 40 C	+ 125 C	Tube	Without ESD Protection
Interface - I/O Expanders 4-Wire-Interfaced, 2.5V to 5.5V, 20-Port MAX7301ATL+T Analog Devices / Maxim Integrated 1: ¥2,476.6 17,199In Stock	Mfr. Part # MAX7301ATL+T Mouser Part # 700-MAX7301ATLT	Analog Devices / Maxim Integrated	Interface - I/O Expanders 4-Wire-Interfaced, 2.5V to 5.5V, 20-Port Learn More about Analog Devices / Maxim Integrated maxim programmable logic controllers	Datasheet	17,199In Stock	Cut Tape ¥2,476.6 ¥2,061.3 ¥1,925.1 ¥1,778.9 View Reel ¥1,549.7 ¥1,675.9 ¥1,654.4 ¥1,549.7 Quote MouseReel Available	Min.: 1 Mult.: 1 : 2,500	MAX7301	SMD/SMT	TQFN-40	Serial, SPI	28 I/O	With Interrupt	2.5 V	5.5 V	26 MHz	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel	Without ESD Protection
Interface - I/O Expanders 2-Wire-Interfaced 16-Bit I/O Port Expand MAX7311AWG+ Analog Devices / Maxim Integrated 1: ¥2,139.4 306In Stock	Mfr. Part # MAX7311AWG+ Mouser Part # 700-MAX7311AWG	Analog Devices / Maxim Integrated	Interface - I/O Expanders 2-Wire-Interfaced 16-Bit I/O Port Expand	Datasheet	306In Stock	¥2,139.4 ¥1,675.9 ¥1,559.7 ¥1,431.8 View ¥1,416.8 ¥1,284 ¥1,257.4 Quote	Min.: 1 Mult.: 1	MAX7311	SMD/SMT	SOIC-24	I2C, Serial, SMBus	16 I/O	With Interrupt	2 V	5.5 V	400 kHz	- 40 C	+ 125 C	Tube	Without ESD Protection
Interface - I/O Expanders 2-Wire-Interfaced 16-Bit I/O Port Expand MAX7312AAG+ Analog Devices / Maxim Integrated 1: ¥1,549.7 861In Stock	Mfr. Part # MAX7312AAG+ Mouser Part # 700-MAX7312AAG	Analog Devices / Maxim Integrated	Interface - I/O Expanders 2-Wire-Interfaced 16-Bit I/O Port Expand	Datasheet	861In Stock	¥1,549.7 ¥1,200.9 ¥1,114.5 ¥1,016.5 View ¥970 ¥943.4 ¥918.5 Quote	Min.: 1 Mult.: 1	MAX7312	SMD/SMT	SSOP-24	I2C, Serial	16 I/O	With Interrupt	2 V	5.5 V	400 kHz	- 40 C	+ 125 C	Tube	Without ESD Protection